Will It Work?
•Potential
Problems …
•Network routing is driven entirely by performance, so a complicated
switch is usually a problem
•Routers
typically forward non-blocked packets in <= 3 tix
•Matching
to recognize that two requests collide is an “add” operation
•Combining
is an “add” operation after the previous add
•Combining
relies on the requests getting to the switch simultaneously, or at worst,
before the forwarded packet leaves … this is improbable
•Most
traffic is non-combinable -- head for different places
•A
combining router was created by Susan Dickey